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I started running my Sundown 3000 at .5 ohms a little over a week ago, and I figured I'd share my experience with performance in regards to temp of the amp.

Subs: 2 dual 2 ohm audiopulse axis wired down to .5

Electrical: 200 amp alt, one kinetik 1800 under the hood and one kinetik 1800 in the trunk.

Sealed box, 2 cubes per sub, impedence rises over 1 ohm at 18 hz and doesnt drop below 1.1 ohms after that.

Gains on the amp are set with 50volume on the deck as max

Before started I took the temp of the amp it was 62 F

I started playin music on volume 40 for 8 minutes, then I turned it up to 50 for 13 minutes. Total test time 21 mins.

I measured the temp of the amp again:

The side with the power wired was 78.4 F, the side with the rcas was 87.8 F

The A/C wasnt on, outside temp was about 55 F, amp is mounted on a board with nothing above it.

Songs played during the test were:

Chain hang low

Paper Planes Remix

This is why Im hot

Lollipop Remix

Watch my shoes

3 Peat

The subs cone temp were both around 76 F

With this said, I feel comfortable running my Sundown 3000 and .5 ohms daily.

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i am about to install a axis, in a ported inclosure tho. how do u like it?

Ride: 2001 BMW325ci

Headunit: Alpine ida-x305

High/mid: stock harmon/kardon everything: 6 tweets, 1 set of 6.5" and 1 set of 6x9, 500rms total

Sub: (1) 15" DC Audio Level 5 D2 ohm

Amp for sub: MTX 4001d

Box: custom built 3.5 cuft ported

Power: 220amp alt from ohio gen, 2 kinetik 2400s in back

(Armoredhaulin @ May 29 2009, 08:34 AM)

Why waste your time with this tool? His system sucks, that's all there really is to it. My toilet puts out more low end and flex than that thing!

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i am about to install a axis, in a ported Enclosure tho. how do u like it?

:rolleyes:

.......................................................

ROE Ref's-

Pornstar, Peas247, Speedcult, 98Tahoe,

2k1 sdime, 20blackls00, acidboy, t00sh0rt

KICKERASSMAN, TheDukey42, RapidFire89,

bass-aholic, xhilr8n , GavRiley2007, Jalat,

checkmate kstms, kingscratchie, F3RR3T,

Audiobahnfreak, + more...

SMD Ref's-

Chode69, kingsuv, pstone11, *1LOWSUV*, kbreudi, RatBass1998,

Applejack, jonathancullen89, Audioman21, Derrick824,

96saturnsl, Caps, spl explorer, littleitaly1990, tudski, sebXC,

mbdblue, j_black10, tre4chevyryda, zfrerichs...

CAC Ref's-

forceww, alex95sl2, canyouhearmatt, flores210, Anime Freak,

iamtheone, dcmcki, rcpease, jigga jatt, mytyeerinpie...

THAT IS TRUE SUB PORN...got some sexy movement and a squirter spewsmiley.gif
Subs are like titties, They need to come in pairs because ones and threes are just wrong, and larger amounts will always draw a crowd, we all have our favorite sizes, but the bigger ones are more fun to watch move. :D
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excuse my spelling.. how do u like the axis tho? i am powerin 1 dual 2ohm 15" with a mtx 4001d

Ride: 2001 BMW325ci

Headunit: Alpine ida-x305

High/mid: stock harmon/kardon everything: 6 tweets, 1 set of 6.5" and 1 set of 6x9, 500rms total

Sub: (1) 15" DC Audio Level 5 D2 ohm

Amp for sub: MTX 4001d

Box: custom built 3.5 cuft ported

Power: 220amp alt from ohio gen, 2 kinetik 2400s in back

(Armoredhaulin @ May 29 2009, 08:34 AM)

Why waste your time with this tool? His system sucks, that's all there really is to it. My toilet puts out more low end and flex than that thing!

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excuse my spelling.. how do u like the axis tho? i am powerin 1 dual 2ohm 15" with a mtx 4001d

LoL, i thought i hit the smiley face also to show it was a joke but it ain't there. muh bad.

and the axis is a bad ass sub to say the least. wish i had 4 for the Explorer.

.......................................................

ROE Ref's-

Pornstar, Peas247, Speedcult, 98Tahoe,

2k1 sdime, 20blackls00, acidboy, t00sh0rt

KICKERASSMAN, TheDukey42, RapidFire89,

bass-aholic, xhilr8n , GavRiley2007, Jalat,

checkmate kstms, kingscratchie, F3RR3T,

Audiobahnfreak, + more...

SMD Ref's-

Chode69, kingsuv, pstone11, *1LOWSUV*, kbreudi, RatBass1998,

Applejack, jonathancullen89, Audioman21, Derrick824,

96saturnsl, Caps, spl explorer, littleitaly1990, tudski, sebXC,

mbdblue, j_black10, tre4chevyryda, zfrerichs...

CAC Ref's-

forceww, alex95sl2, canyouhearmatt, flores210, Anime Freak,

iamtheone, dcmcki, rcpease, jigga jatt, mytyeerinpie...

THAT IS TRUE SUB PORN...got some sexy movement and a squirter spewsmiley.gif
Subs are like titties, They need to come in pairs because ones and threes are just wrong, and larger amounts will always draw a crowd, we all have our favorite sizes, but the bigger ones are more fun to watch move. :D
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its aight.

thats good to know, i hope mine sounds good. i only got one but itll c more than the 2500rms its rated to handle so it should be plenty loud

Ride: 2001 BMW325ci

Headunit: Alpine ida-x305

High/mid: stock harmon/kardon everything: 6 tweets, 1 set of 6.5" and 1 set of 6x9, 500rms total

Sub: (1) 15" DC Audio Level 5 D2 ohm

Amp for sub: MTX 4001d

Box: custom built 3.5 cuft ported

Power: 220amp alt from ohio gen, 2 kinetik 2400s in back

(Armoredhaulin @ May 29 2009, 08:34 AM)

Why waste your time with this tool? His system sucks, that's all there really is to it. My toilet puts out more low end and flex than that thing!

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i am about to install a axis, in a ported inclosure tho. how do u like it?

youll love the sub. Its been great for me. If you wanna have fun with it tune it around 25 and play some chopped and screwed stuff. It wont meter as high that way though.

edit: I usually have mine ported, but it working on fitting both of them in my trunk ported. so i just sealed then up for now

Edited by fritosaregood
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Update:

I decide to do another test, but this time with roughly half the power.

Before i started the temp of the amp was 74 F

I played music for 19 mins.

The tempurature this time was 77.5 F on the power terminal side, and 84.8 F on the RCA side. Pretty much the same as the fult tilt test.

So further conclusions are these temps seem to me regular operating temps at this low ohm.

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